That DASHBOARD_INCREMENT change was required because as was written earlier, we have modified the initalState's structure of the dashboard reducer (so we also need to change the function that handles it). The Object.assign's (in example '...' feature from ES6) visitsCount is used the same way as on the Redux's tutorial's videos on EggHead.

Currently, we have made small improvements to the dashboard with a list and the visitsCount also works like before (alongside with improved dashboard's reducer):

Source code from the screenshots: https://github.com/ReactPoland/reactjs-redux-tutorial/commit/chapter-4